The Spark Ultralight Mummy Sleeping Bag Series spans everything from an ultralight down-filled liner to a mid-winter fast-and-light sleeping bag. Each model uses premium materials and no-frills design to provide cutting-edge performance.
Ultralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.
Specifications:
Regular -15C (5F)
Long -15C (5F)
Bag Series
Spark 4
Spark 4
Bag Weight
1 lb 15 oz
2 lbs 2.7 oz
Compressed Volume
6.6L
7.7L
Compression Sack
Small (10L – 3.3L)
Small (10L – 3.3L)
Fill Weight
21.9 oz
24.7 oz
Fits up to Height
6′
6’6″
Season Rating
3.5 Season
3.5 Season
Temperature Rating
-15C (5F)
-15C (5F)
